First edition published 1847-52, under title "Danmarks fugle."
Text has also special t.-p. Title of atlas varies slightly
Collation of atlas: lv (i.e. 61) pl., xxii, xxxiii, xl, li being duplicated in numbering, xxviii repeated three times; 1 suppl., 35 pl.; 2 suppl., 8 pl.; all these published 1875-77; 2 extra pl., published 1879